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Differences in fingers also determine sexual orientations,for example, women with homosexual orientation, often have the ring finger longer than the index, suggesting the presence of more testosterone from the womb, while for the male homosexuals, they have longer index fingers.

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"Weighted index numbers"

In the simple index number, every commodity is given the same impor­tance. But it is a matter of common knowledge that to a consumer all commodities are not of the same importance.